Pressurized feedshoe apparatus and method for precompacting powdered materials
US5885496A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/251
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pressurized feed shoe for delivering particulate materials to fill a die cavity is provided. The feed shoe includes a feed shoe body comprising a vessel for receiving a quantity of particulate material. The feed shoe body has at least one bottom egress opening for registering with the die cavity and a top ingress opening for receiving particulate material. A pressure generator for generating supra-atmospheric pressures within the vessel and the die cavity is also provided. The pressure generator communicates with the vessel via a conduit sealingly engaged thereto. A shuttle selectively moves the feed shoe body to and from a position whereby the bottom egress opening registers with the die cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.